Yes. as long as the activity occurs 40 feet away from any entrance to
the polling place.

Can I wear campaign materials inside the polling place?

Only voters who are in the polling place for the purpose of
voting may wear a button, sticker, or apparel showing a candidates's
name or a political slogan. After voting, voters must exit the polling
place. Voters may not advocate for candidates or issues while inside the
polling place or within 40 feet from any entrance.

Candidates, representatives and others within 40 feet of the
entrance to the polling place who are not actively engaged in casting
their ballots may not wear campaign apparel, buttons, stickers,
etc.